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Finding the Fourth Proportional to 343,654.43, 474,245.64 and 190,693.22

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Solution

The fourth proportional to 343,654.43, 474,245.64 and 190,693.22 is: 263,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,654.43 : 474,245.64 = 190,693.22 : x
  2. Step 2: Convert to fraction form
    343,654.43/474,245.64 = 190,693.22/x
  3. Step 3: Cross multiply
    343,654.43x = 474,245.64 × 190,693.22
  4. Step 4: Simplify right side
    343,654.43x = 90,435,425,791.33
  5. Step 5: Solve for x
    x = 90,435,425,791.33/343,654.43
  6. Step 6: Final answer
    x = 263,158.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.